package com.decker.parse.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.service.*;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.List;

/**
 * Swagger2API文档的配置
 */
@Configuration
@EnableSwagger2
public class Swagger2Config {

    @Bean
    public Docket createRestApi() {

        List<Parameter> pars = new ArrayList<>();

        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.decker.parse.controller"))
                .paths(PathSelectors.any())
                .build()
                // 添加登录认证
                .securitySchemes(securitySchemes())
                .securityContexts(securityContexts())
                .globalOperationParameters(pars);
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("短视频获取无水印")
                .description("短视频获取无水印资源")
                .version("1.0.0")
                .build();
    }

    private List<ApiKey> securitySchemes() {
        //设置请求头信息
        List<ApiKey> result = new ArrayList<>();
        ApiKey apiKey = new ApiKey("Authorization", "Authorization", "header");
        result.add(apiKey);
        return result;
    }

    private List<SecurityContext> securityContexts() {
        // 设置需要登录认证的路径
        List<SecurityContext> result = new ArrayList<>();
        result.add(getContextByPath());
        return result;
    }

    private SecurityContext getContextByPath() {
        return SecurityContext.builder()
                .securityReferences(defaultAuth())
                .forPaths(PathSelectors.regex("/.*"))
                .build();
    }

    private List<SecurityReference> defaultAuth() {
        List<SecurityReference> result = new ArrayList<>();
        AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
        AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
        authorizationScopes[0] = authorizationScope;
        result.add(new SecurityReference("Authorization", authorizationScopes));
        return result;
    }

    /**
     * 添加统一头部
     *
     * @param name         字段名
     * @param description  描述
     * @param defaultValue 默认值
     * @param modelRef     参数类型
     * @return 构造好的参数
     */
    private Parameter addCommonHeader(String name, String description, String defaultValue, String modelRef) {
        return new ParameterBuilder().name(name).description(description).defaultValue(defaultValue)
                .modelRef(new ModelRef(modelRef)).parameterType("header")
                .required(false).build();
    }
}
